// Copyright 2005 The Apache Software Foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package org.apache.tapestry.form.translator;
import org.apache.hivemind.util.PropertyUtils;
import org.apache.tapestry.IMarkupWriter;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.form.FormComponentContributorContext;
import org.apache.tapestry.form.IFormComponent;
import org.apache.tapestry.json.JSONLiteral;
import org.apache.tapestry.json.JSONObject;
import org.apache.tapestry.valid.ValidationConstants;
import org.apache.tapestry.valid.ValidationConstraint;
import org.apache.tapestry.valid.ValidationStrings;
import java.text.DateFormatSymbols;
import java.text.Format;
import java.text.SimpleDateFormat;
import java.util.Locale;
/**
* A {@link java.text.SimpleDateFormat}-based {@link Translator} implementation.
*
* @author Paul Ferraro
* @since 4.0
*/
public class DateTranslator extends FormatTranslator
{
private boolean _lenient=true;
protected SimpleDateFormat _rfc339Format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
public DateTranslator()
{
}
// Needed until HIVEMIND-134 fix is available
public DateTranslator(String initializer)
{
PropertyUtils.configureProperties(this, initializer);
}
/**
* @see org.apache.tapestry.form.translator.FormatTranslator#defaultPattern()
*/
protected String defaultPattern()
{
return "MM/dd/yyyy";
}
/**
* @see org.apache.tapestry.form.translator.FormatTranslator#getFormat(java.util.Locale)
*/
protected Format getFormat(Locale locale)
{
return getDateFormat(locale);
}
/**
* Get the RFC339 equivalent for the given object.
*
* @param input The object to be formatted.
*
* @return A string value compliant with rfc339 internet time.
*/
public String formatRfc3339(Object input)
{
return _rfc339Format.format(input);
}
public SimpleDateFormat getDateFormat(Locale locale)
{
SimpleDateFormat ret = new SimpleDateFormat(getPattern(), new DateFormatSymbols(locale));
ret.setLenient(_lenient);
return ret;
}
/**
* @see org.apache.tapestry.form.translator.FormatTranslator#getMessageKey()
*/
protected String getMessageKey()
{
return ValidationStrings.INVALID_DATE;
}
/**
* @see org.apache.tapestry.form.translator.AbstractTranslator#getMessageParameters(java.util.Locale,
* java.lang.String)
*/
protected Object[] getMessageParameters(Locale locale, String label)
{
String pattern = getDateFormat(locale).toLocalizedPattern().toUpperCase(locale);
return new Object[] { label, pattern };
}
/**
*
* {@inheritDoc}
*/
public void renderContribution(IMarkupWriter writer, IRequestCycle cycle,
FormComponentContributorContext context, IFormComponent field)
{
super.renderContribution(writer, cycle, context, field);
String message = buildMessage(context, field, getMessageKey());
JSONObject profile = context.getProfile();
if (!profile.has(ValidationConstants.CONSTRAINTS)) {
profile.put(ValidationConstants.CONSTRAINTS, new JSONObject());
}
JSONObject cons = profile.getJSONObject(ValidationConstants.CONSTRAINTS);
context.addInitializationScript(field, "dojo.require(\"tapestry.form.datetime\");");
accumulateProperty(cons, field.getClientId(),
new JSONLiteral("[tapestry.form.datetime.isValidDate,{"
+ "datePattern:"
+ JSONObject.quote(getPattern())
+ (isLenient() ? "" : ",strict:true")
+ "}]"));
accumulateProfileProperty(field, profile, ValidationConstants.CONSTRAINTS, message);
}
/**
* @see org.apache.tapestry.form.translator.FormatTranslator#getConstraint()
*/
protected ValidationConstraint getConstraint()
{
return ValidationConstraint.DATE_FORMAT;
}
public void setLenient(boolean value)
{
_lenient = value;
}
public boolean isLenient()
{
return _lenient;
}
}